janetsh
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User callback for argument completion
It would be nice to allow users to register callbacks for completing a command. This would allow them to keep the normal completion logic we have while getting custom stuff for completing e.g. git
. It would also save people from needing to redundantly implement parsing logic, etc. I'm thinking something like: https://elv.sh/ref/edit.html#argument-completer
It would probably be best to wait to do this until after janet-lang/janet#121 is implemented, but I thought I'd go ahead and open an issue.
I think it is reasonable to guide people in the right direction on this without necessarily implementing everything ourselves, so I agree a common extension point is reasonable.
Another thought, once the coprocess function is added, people can spawn completion servers implemented in other shells which will be cool.